| Business | Phone |
| Cal-Tronics Systems Inc 729 Creel Dr, Wood Dale 60191 | (630) 350-1728 |
| Jim's Electric Svc 372 Beinoris Dr, Wood Dale 60191 | (630) 595-8680 |
| Keller Electric Inc 244 Apollo Ct, Wood Dale 60191 | (630) 766-4505 |
| W D Electric Construction 238 E Irving Park Rd, Wood Dale 60191 | (630) 766-2894 |